The Oahu Interscholastic Association went 4-1 in the opening round of the Wally Yonamine Foundation Division I state baseball tournament on Wednesday. Of course, Mililani and Kalani was a head-to-head match of OIA teams, thus the one loss.

The OIA West makes up half the field and facing every seeded team. Only third seeded Kailua hails from the OIA East. The Surfriders play the first quarterfinal of the day against defending state champion Campbell, which lost all of its returning starters to graduation.

Quarterfinals

10:45 a.m.

No. 3 seed Kailua Surfriders

Record: 12-3, OIA champion

Coach: Corey Ishigo (18^th season, 226-73-1)

State history: 27^th appearance (41-32 overall, 30-22 championship bracket, 4 titles (1965, 1967, 1969, 2001)). Quarterfinals: 11-6.

Vs.

Campbell Sabers

Record: 11-6, OIA 5th

Coach: Rory Pico (13^th season, 125-68)

State history:  12^th appearance (16-14 overall, 13-9 championship bracket, 2 titles (1978, 2015)). Quarterfinals: 5-3.

1:30 p.m.

No. 4 seed Waiakea Warriors

Record: 15-2, BIIF champion

Coach: Rory Inouye (2^nd season, 24-7)

State history: 32^nd appearance (29-52 overall, 14-31 in championship bracket, 1 title (2012)). Quarterfinals:  7-16.

Vs.

Pearl City Chargers

Record: 15-1, OIA 3rd. Coach: Gavin Concepcion (2^nd season, 25-9)

State history:  23rd appearance (33-29-4 overall, 19-21 championship bracket, 1 title (2011)). Quarterfinals: 7-9. Lost to Waiakea in 2004 quarters.

4:15 p.m.

No. 1 seed Mid-Pacific Institute

Record: 16-4, ILH champion

Coach: Dunn Muramaru (40^th season, 30^th at MPI, 535-244-4)

State history: 20^th appearance (48-15 overall, 38-15 championship bracket, 5 titles (1990, 1991, 1992, 2002, 2013)). Quarterfinals: 14-5.

Vs.

Mililani Trojans

Record: 11-5, OIA 6th

Coach: Mark Hirayama (8^th season, 87-54-1)

State history:  20^th appearance (27-30-1 overall, 17-19 championship bracket). Quarterfinals: 4-8. Beat MPI in 2014 quarters.

7 p.m.

No. 2 seed Baldwin Bears

Record:  14-0, MIL champion

Coach: Jon Viela (10^th season, 132-31)

State history:  41^st appearance (53-60-1 overall, 34-37 championship bracket, 4 titles (1959, 1960, 1984, 1995)). Quarterfinals: 18-19.

Vs.

Waipahu Marauders

Record: 6-11, OIA 4th

Acting coach: Milton Takenaka (29 seasons, 185-176-2)

State history: 16^th appearance (15-22 overall, 11-15 championship bracket.). Quarterfinals: 4-5.